code: def check_value_check(self):
      if self.valid:
          # Check if it throws nothing
          functions.hstack(self.xs)
      else:
          with self.assertRaises(type_check.InvalidType):
              functions.hstack(self.xs)
  
file_path: chainer/tests/chainer_tests/functions_tests/array_tests/test_hstack.py
imports: import unittest
  import numpy
  import six
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the TestHstackTypeCheck obj's underlying member method code with example usage: obj.check_value_check() without return types